<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="/register" method="post">
        <p>
            姓名:<input type="text" name="username"/>
        </p>
        <p>
            年龄:<input type="number" name="age"/>
        </p>
        <p>
            邮箱:<input type="email" name="email"/>
        </p>
        <p>
            <input type="submit" value="提交"/>
        </p>

    </form>
</body>
</html>